| Whitehead O-9-12642 | Willowbend Investments, Inc. | Branch, South (Tannehill) | 57 | 703K | 41 | by Jan 1993 – Aug 2026 |
| Clark Ranch South O-9-14613 | Tri-Force Operating, L.L.C. | Celery (Cook Sand) | 16 | 605K | 0 | Jul 1997 – Aug 2026 |
| Powell, John A. O-9-17754 | Geosurveys, Inc. | John P (Ellenburger) | 4 | 200K | 0 | Jul 2011 – Jul 2026 |
| Wilkinson "B" O-9-5490 | Walsh & Watts, Inc. | Ferris (King 1650) | 7 | 176K | 21 | by Jan 1993 – Feb 2016 |
| Russell O-9-17241 | Sawyer Oil & Gas LLC | Danny Mae (Lower Cisco "A") | 10 | 167K | 0 | Jul 2010 – Aug 2026 |
| Maggie O-9-16274 | Sawyer Oil & Gas LLC | Little Dog (Camar) | 1 | 116K | 13.9K | Mar 2007 – Aug 2026 |
| Espy "A" O-9-17573 | Sawyer Oil & Gas LLC | Sammie Jeanne (Crosscut) | 6 | 112K | 0 | Sep 2011 – Jul 2026 |
| Espy "A" O-9-17559 | Sawyer Oil & Gas LLC | Danny Mae (Lower Cisco "A") | 11 | 110K | 0 | Aug 2011 – Aug 2026 |
| Whitehead, G. O-9-9681 | Willowbend Investments, Inc. | Branch, S. (Bunger) | 9 | 107K | 32 | by Jan 1993 – Jul 2026 |
| Nichols O-9-13380 | Bustamante Resources LLC | J. Nichols (Cook Sand) | 1 | 96.5K | 88 | by Jan 1993 – Jul 2026 |
| Windmill - Cvcbsa O-9-15154 | Sinclair Energy Corporation | Harry Bush (Strawn) | 1 | 88.7K | 33.9K | Mar 2001 – Jul 2024 |
| Rogers, U. E. O-9-3548 | Free Rein Operating LLC | Tuckmar, South (3700 Sand) | 1 | 88K | 22 | by Jan 1993 – Aug 2026 |
| Alda Davis O-9-17985 | Geosurveys, Inc. | John P (Ellenburger) | 4 | 80.6K | 0 | Nov 2011 – Jul 2026 |
| Russell Ranch O-9-5372 | Allison Lease Services LLC | Shaheen (Harkey 3500) | 5 | 67.8K | 4.62K | by Jan 1993 – Aug 2026 |
| Wilkinson "B" O-9-19442 | Walsh & Watts, Inc. | Ferris (Consolidated King-Hope) | 8 | 61.1K | 0 | Mar 2016 – Aug 2026 |
| Marthann O-9-11117 | Golden Oil and Ranch, LLC | Clear Creek (Cisco) | 5 | 59.1K | 29 | by Jan 1993 – Jun 2026 |
| Clark Ranch South O-9-14753 | Tri-Force Operating, L.L.C. | Lela (Gunsight) | 2 | 53.8K | 0 | Apr 1998 – Aug 2026 |
| Peggy O-9-18191 | Golden Oil and Ranch, LLC | John P (Ellenburger) | 5 | 51.4K | 4.99K | Sep 2013 – Jun 2026 |
| Kothmann O-9-5190 | Walsh & Watts, Inc. | Ferris (King 1650) | 3 | 49.7K | 21 | by Jan 1993 – Feb 2016 |
| Bsa Strawn 12 O-9-12528 | J & J Well Service, Inc. | Bsa (Strawn Sand) | 5 | 47.4K | 15.3K | by Jan 1993 – Dec 2010 |
| Russell O-9-16986 | Sawyer Oil & Gas LLC | P-C (Strawn) | 6 | 44.3K | 0 | Oct 2009 – Nov 2025 |
| Larrimore O-9-11651 | Willowbend Investments, Inc. | Las Moras (Caddo) | 1 | 44.2K | 20 | by Jan 1993 – May 2025 |
| Duwe O-9-14692 | Otex LLC | Celery (Strawn 2975) | 4 | 43K | 230K | Oct 1997 – Aug 2026 |
| Taylor O-9-12290 | Diamondback E&P LLC | Taylor Draw (Devonian) | 3 | 42K | 292K | by Jan 1993 – Aug 2026 |
| Treadwell, J. M. O-9-3468 | Mag Exploration LLC | F & H (Cisco) | 1 | 41.2K | 22 | by Jan 1993 – Dec 2025 |
| Wheless O-9-15310 | Cazar Energy Inc | Menard, W. (Harkey) | 4 | 40.1K | 0 | Nov 2002 – Jul 2026 |
| Clark Ranch South O-9-14768 | Tri-Force Operating, L.L.C. | Celery (Strawn 2800) | 1 | 39.1K | 2 | Feb 1998 – Aug 2026 |
| Wilkinson, E. G. O-9-5282 | Walsh & Watts, Inc. | Ferris (King 1650) | 3 | 38K | 21 | by Jan 1993 – Feb 2016 |
| Vaughn, John Troy "D" O-9-6683 | Alaron Energy, Inc. | F & H, N. (3665) | 4 | 37.8K | 22 | by Jan 1993 – Jul 2017 |
| Pfluger, Madlyn "1,2" O-9-8583 | Otex LLC | Celery (Strawn 2975) | 2 | 37.1K | 6.4K | by Jan 1993 – Aug 2026 |
| Prugel - Henke O-9-15337 | Otex LLC | Nick of Time (Hope) | 3 | 34.6K | 0 | Jan 2003 – Aug 2026 |
| Russell O-9-16977 | Sawyer Oil & Gas LLC | Little Dog (Camar) | 4 | 34.5K | 0 | Sep 2009 – Jun 2026 |
| Tomlinson, W. R. Estate O-9-5523 | Damron Energy, LLC | P-C (Strawn) | 3 | 31K | 4.62K | by Jan 1993 – Jun 2019 |
| Nichols, J. O-9-14548 | Bustamante Resources LLC | J. Nichols (King Sand) | 2 | 28.2K | 0 | Feb 1997 – Jul 2026 |
| Boy Scouts of America O-9-10895 | Magnum Oilfield Services LLC | Bsa (Strawn Sand) | 1 | 27.6K | 309 | by Jan 1993 – May 2014 |
| Grandstaff, George O-9-12299 | O'Dell, Mitchell | Lela (King) | 5 | 27.1K | 21 | by Jan 1993 – Aug 2026 |
| Whitehead O-9-13475 | Willowbend Investments, Inc. | Branch, S. (Bunger) | 3 | 26.8K | 2.55K | May 1993 – Sep 2020 |
| Neel O-9-8716 | Quatro Oil and Gas, Inc. | Jacoby (Fry) | 2 | 26.6K | 78 | by Jan 1993 – Sep 2008 |
| Espy-Russell Unit O-9-17951 | Sawyer Oil & Gas LLC | Danny Mae (Lower Cisco "A") | 1 | 26.1K | 0 | May 2012 – Aug 2026 |
| Brandenberger "A" O-9-11354 | Willowbend Investments, Inc. | Menard, W. (Harkey) | 1 | 23.1K | 13.2K | by Jan 1993 – Jan 2019 |
| Tomlinson, W. R. Estate -A- O-9-6530 | Unit Petroleum Company | P-C (Strawn) | 1 | 22.9K | 22 | by Jan 1993 – May 2013 |
| Susan Petr O-9-11466 | Pentergy Operating, LLC | Celery (Strawn 2975) | 1 | 21.7K | 1.51K | by Jan 1993 – Jun 2007 |
| Concho Valley B S A "C" O-9-6169 | Texas Western Oil Company | P-C, SW (Strawn, Lower) | 2 | 20.8K | 4.62K | by Jan 1993 – Feb 1997 |
| Pfluger Ranch South O-9-13120 | Tri-Force Operating, L.L.C. | Celery (Strawn 2975) | 3 | 20.5K | 43 | by Jan 1993 – Sep 2009 |
| Clark Ranch O-9-14676 | Tri-Force Operating, L.L.C. | Celery (Canyon) | 1 | 19.2K | 0 | Oct 1997 – Feb 2013 |
| Grandstaff, George "A" O-9-13101 | O'Dell, Mitchell | Lela (Gunsight) | 1 | 18.6K | 20 | by Jan 1993 – Aug 2026 |
| Wilkinson "B" O-9-5539 | Walsh & Watts, Inc. | Ferris (King Sand Lower) | 1 | 18.5K | 21 | by Jan 1993 – Feb 2016 |
| Brandenberger O-9-9996 | Willowbend Investments, Inc. | Menard, W. (Harkey) | 3 | 18.3K | 3.19K | by Jan 1993 – Feb 2019 |
| Maggie O-9-16385 | Sawyer Oil & Gas LLC | F & H, East (Cook) | 2 | 17.8K | 0 | Nov 2007 – Jul 2024 |
| Clark Ranch South O-9-14909 | Tri-Force Operating, L.L.C. | Celery (Strawn 2975) | 2 | 16.9K | 838 | Mar 2000 – Aug 2026 |